Lister



Patented July 27, 1943 Moline, Ill .',ass i or at seat a Moline, 111., acorporationoflllinois Application iluly 1s, 1940;:seria1 No. sie0s9Walten Hr Silver,

omm;

t I w r reclaims; Crier-1 23i) j; :The present invention relatesgenerally to ag- Y particularly" ricultural implementsand is moreconcerned with implements carried on relatively widelyspaced groundwheels.

In certain agricultural sections where one and two bottom listers are incommon use, it is frequently desirable to support the lister upon twoground wheels spaced apart at relatively great distancescso that onewheel may run in the previously formed furrow while the other wheel runson the land with the lister frame spanning a distance equivalent to twoor three times the row spacing. Thus, thewheel in the furrow serves as aguide for holding the lister to its Work. Such implements are sometimesreferred to as trench guide listers. Heretofore; the frame for' such animplement has been constructed along conventional lines, embodying theusual type'of frame angles with horizontal and vertical'braces- A frameconstruction of this nature when made suificiently heavyto secure therequisite strength has been relatively large and expensive, and theobject and general nature ofthe present inven-' tion is to provide aframeconstruction mimplements of this typevin which-the desired widespacing between the supporting ground wheel's-- has been secured-withoutexcessive bracing and other extraneous parts.

More specifically, tion to provide an implement frame construc-" tion inwhich the mainframe includes aitransverse member to; the ends of'whichextension members are rigidly fastened;v 'Furthen'it is a" feature ofthisinvention to provide extension members in the form of generally zshapedbars, oneend of which is rigidly bolted to theassociated mainframe and the other end. of'which receives a wheel supported crank axle.

Another feature of this; invention is the provision of an extensionmember for wide-tread listers and the like in which each extensionmember consists of a bar having a downwardly andv laterally outwardlyextending-section anda gen-. erally vertically disposed strut, theloweryend of the latter terminating generally in line :with the lowerend ofthe angled portion of the bar, whereby thecrank axle is connectedfor rocking movement about the axis defined bythe strutand'the outwardlyangled end ofthe bar Further, it is a feature ofthis invention toconstruct boththe extension member and the crank axle of an angledbarland a rigidly connected strut;- the end of each .bar being receivedby the end of the strut of the associated member.

An additional feature or this me a; is t e it is a feature of thisinvenprovision of driving'connections supported on a verticallyextending strut rigidly fixed to the eX-'" tensionb'an -and stillfurther, a'feature of this invention is to provide a sectory preferablybut not necessarily integral with the crank axle supporting 'st'rutgwithoperative connections between alev erpi'votallymounted on the sector andthe crank axleassociated-therewith.

.-"-Ihese and other object's 'and' advantages of the presentinvention-will be apparent" to those skilled. in :the. art. aftera.considerationof the" following detailed description taken in conjunctionWith the. accompanying drawin'ggin which:

Figure l-is aplan view-of atrench' guidetwo bottom-. listerl in which:the principles of the pres ent invention have: been incorporated;

1 Figureg2isai perspective viewv showing 'the ex- I tension framestructure forming the principal part of the present-invention; and:Figure-B is a sectional view along the 1ine-3-'-3 of Figure 1; a vv;

The lister in which the principles'ofthe present invention 'have beenembodied includes a main frame-indicated in its entirety by the 'referencenumeral 1 and which is more or less of conventional 1construction,' embodying longitu-v dinallyidisposed frame bar'sYZ and z3connected together 'at;their rear ends byatransversebar 4 and at theirforward ends by a transverse frame v member'i which; as best shown inFigure 2,- is I of inverted U -shap'e construction; An 'interme-s 1diate crossbar. is'provided; as indicatedat 6.

The-i1nplement-shown :in Figure '1 is a two bot-' tom listertthe bottomsbeing mounted opposite one another, as indicate'dby th'e'referencenumerals!) and :IflJwThe lister bottomsare of con'-' ventionalconstruction; and each is attached to" a lister beam 1 H. 'The twolisterbeams are sup n ported ing movement 'on a swingably mounted bail'I2."A"hitch-' plate l3 s rigidly fixedto" the forward end of each beamI I to receive the draft .connectionsfnot shown) and a chain isconnected between thelforward end of each beam i I a'nd abracket'lBfixed adjacent eachlaterally outer end'of the transverse framememberi. g

Goming now-toi-the'part of the list'er with" which the present inventionis more particularly concerned; it will be noted from' Figure 1 that a,pair 'of' right and left hand extension mem- [bers 21 and 22 are fixedtothe liste frame-T substantially in transverse alignment with the fronttransverse speaking; the "frame extensions-'21- substantially: identicalconstruction; except that 'taken generally' v I frame member ii.Generally" and 2z 'are of one is right hand and the other is left hand,and hence a description of one will sufiice.

Each of the frame extensions 2| and 22 comprises a frame member,indicated in its entirety by the reference numeral Y25, and a pivotallyinterconnected crank axle 26. The member 25 includes a bar 21,preferably of round stock,

which is generally of Z configuration, including an attaching section'28, an angled section 29, and a. crank axlereceiving section 30, thesections 28 and being substantially parallel. The

member 25 also includes a strut 32 formed of flat; stock and the strut32 includes a downwardly extending section 33 which at its upper endisfi.

permanently secured, as by welding 34" or the. like, tothe bar 21.

which is welded to an attaching bar orblock 31. T azlatte s deda. as:@1238; si OihflWiSfiaDfl': manent r wuredtq the bar. s ction .,1 @d. hsecti n ie-p ided; wi h a i of. bolt holesli y wh ch he. m mhec 25 maybaflmflr riddlr: bolted; as. at H: m m o t mpl ment frame. h Breierahr..thc'sectis -n; which for-m pqf st ck thnt isimund in cross: section,is disposed ornested withim-the-curvedi part orathe' u-shapedgmemberi'ithe; sidespor flnngesofthe; latter having: openingsmegisten.

int: w th the bar openings 3! 'toi receive therboltsl 4t It; will. benoted; particularly from Fi re .2,

thatthe section. 28 or thamembepllhhd the section. 363; 01 "the member."nerve a's .igener'ally dflwrrwardhe disposed frame-struts; which.- arerigidly fastened to the member-5% attire-simples. ment; flamel.-,.ther.eby-, in effect; forming a rigid partoi the latter; Thesection j:30:-ot.the mem"- ber 25 is in axiaiHalignmentiwithr-the.opening 3! lower end or the-strut 33 so as tororm two laterallyspacediapartse'ctions ta receive. the crankaxlefic.

The crank; Mats formed Substantially like juiexmemberazuy That is; themember 26 consists of a bar l5=which includes three. sections,

namely; i a when receiving section 46,:- an' angled sectional; ands.thll'd;=S80fl0fi "athatisbent I s01 can to.) extend generally parallelto. the: wheel xsectionl itl Alsmas-trut it is welded. .8, 8tqhotherwiatrtltdlyr memwmabama and: has amend it: sputum-em. as at .53;in use wlthmhetxis' oi the section 38; It will'beinoted i that; imthecase oiboth'ottries-members 25" and. 2h. thev strut is fixed; toii'theround-martin such a. positionthat the strut is disposed in thegatheredplane that: passes :through or contains the angled SQQtiGB-y Thewheel'receivingcrank axle 25d: pivoted to the; member :25 by. insertingthe; end or; section lhg in thasopening 35 in that lower endiof,the/strut," and hyipassinglthe end at, the strut rover the endm 'of-theZ-bar 21.; Any suitable meansmay be: provided for holdingrthe member.25: on 1 the member; 25, such 81.! P001151 sand arcotter. key .55.-Thesupmnflnmwheel; which is mounted on the section 48 of each of thecrank axles 25-; is ihdicated in Figure 1;;by the reference. numeral.56. 'A. dust wm lpmie chly a swalded or otherwise fixed to" bfii c hnr:0 BQ-Qhcrenkeaxle' and. serves to limitrthe laterally inwardmovement ofthe 1 whq isa. t,

nacn r the crank controlled by a hand leyenso thatnnewheel' 58 may '0.in. nrcv mlystormed furrow WW8 therpthe f wheel-may beidisposed'inl-a-posi- At its lower; end "the: strut section 33 is apertured, asat 35. At its upper end the strut section 33 is weld'edto. the lower endof a diagonal brace 36, the upper .end-..of.

. GS suitably. secured togetherand formed at their ends to receive thearm 56 and the rear extension "ii of an arm 12 which is secured to thesection 48 of the member 26. Preferably, the arm 12 has a squared hub,13 which is secured onto "the innerfsquaredfjend M of the section 48.The

arm 12incli1des a forward extension 11 which is iahertured t'o receiyethe lower end of a vertically disposed spring 13, the upper endof whichis adjustably "secured, as by an eyebolt T9, to the upper, end [of abracket 51;. preferably.- fastened rigidly to-t-he frame memberE-byohehf thmbolts which; secures; the; 081K311. to the implement frameI. The springmservemto cotinterlaalarice the weight or the ,frameand-to.aidin raising and we in he. rflme relative to the asso iamd wheelifii vi Th ht-hand frame extension zr. is.-'oi!-suh-' stantially identical;construction; as mentton'ed above, 'Witl' theleft handzframe extension22 which has been described" inrdetail; and therefore a furtherdescription of the: extension 2|; so inasthe above features ofinventirmare concerned, isu-nhfifiessa-ry; i

i Referring-110W to-Ili'igure 3;i t willbeseenthat the right handgroundwheel as is rovided with driving connections by which "theplanting units ctthelisterare actuated; To this end; therighthandtwheelr 56 carries asprqcket 9i whicliby means .ofza chain82dflves a double sprocket S3,

and; the latterdn turn drives a sprocket 93- by means of ahorizontallyextending chain 9!. The sprocket; Skis fixedtolthelaterallyouterend Ora driveshaft. 91;.which at -its laterally'outer end is supported-in a strut u preferably formed off flat stnckandwelded: at its. lower end; asat 99in Figure .1-, m the. crank axlerceivlng section so of the Z-bar 21 of the right' handframeextensionunit'wZL. The shait 31 extends-laterally inwardly as best.shown" in Figure 1, and; drives the seeding .shflftflll L by means of-asprocketchain it; more or lesslof conventional consthiction.Preferably, the chain 92: is" enclosed in a protecting-casing tug-andlinks llli' and I0? (Figure3) operati'vtely. supportthedoublesprockfl93" in the propeniposition relative to-the axis of the drive wheeh5iandtheaxisbfthe drive shaft 91" while accommodating movement of the wheel56," relative:;to..'the implement'frame by the adjusting lever. Fromm-heabove description it will be seen that I have provided awide-treadlister'ofjthe trench, guide type'but'without arelativelyheavyframe and." without the plurality "of longitudinal and vertical bracescommonly'emplcyed, inmachines.

oithistype; It will also be seen that by virtue of the frame extensionsEland 2-2; thesame main frame construction may be employed. rorlli stersnot'of the-wide-tread-type.; f

' While I have shown and'de sc'rlbed above preferred structure in-whichtheprinciples oft e present invention have-been-ernbodied,,it is to beunderstood thatin fact; widely diiterentgmeans may beemployedirrithepractlceofthe, broader" 7B aspects of'myinvent-ionf j2,325,278 What i claim'; therefor,' and desire tose'cure:

by Letters Patent i cluding a generally transverse member; invertedU-shaped' in cross section} a "pair of extension members, one at eachend of said U-shaped mem ber, each of saidextension members comprisfixedat one end to one of said terminal sections ing a bar substantiallyround in cross section,

the inner end of which is adapted to be disposed in the rounded portionof the associated end of the transverse frame member, the outer portionof each bar extending generally downwardly and laterally outwardly withrespect to the portionthereof that is received by said U-shapedtransverse member, and a bar generally rectangular in cross sectionwelded to the inner end of each of said extension members, said, barhaving a width to fit in between the lower portions of said U-shapedtransverse frame member, and means securing said bar to the lowerportions of said transverse member.

2. A frame construction for agricultural implements and the like,comprising a substantially U-shaped frame member, an extension memberrounded so as to fit within the rounded part of said frame member, amember havin fiat sides so as to fit between the sides of said U-shapedmember and welded to said extension member, said fiat member and thesides of said U-shaped member having registering openings, and boltmeans passing through'said registering openings for rigidly connectingsaid extension member to said frame member.

3. An extension frame adapted to be attached rigidly to an implementframe, comprisinga first member adapted to be fixed to said implementframe, said member bent intermediate its end so disposed-in the generalplane of said Z-btr'and and" having its other" end disposed fingenerally axial alignment with the-other terminal,"section, a sectoifixed to said strutI-a lever pivoted to said sector, a crank axlemounted'for rocking move-- ment on said other terminal section Of theZ-bar and on the end of said strut, and an operative connection'betweensaidlever and said crank axle.

7. An agricultural implement as defined in, claim 6, furthercharacterized by a second strut fixed to said Z-bar adjacent the otherterminal section thereof and extending generally upward- 1y, a groundwheel supported for rotation on said crank axle, and driving connectionsfrom said ground wheel including parts supported for rotation on theupper end of said second strut.

8. An agricultural implement comprising a frame including a. generallytransversely disposed member, an extension member fixed at its inner endto said transverse member and extending generally downwardly andlaterally outwardly therefrom, a depending strut fixed to said extensionmember adjacent the end of the frame as to form an attaching section anda down- I wardly and laterally outwardly extending section, and adownwardly extendin strut rigidly strut fixed at one end to said firstsection and at the other end lying in line with the axis of said spindlesection, an axle comprising a, bar having a portion received in saidother end of said strut and curving outwardly away from said portion,said second bar terminating in a wheel receiving section, and a strutfixed at one end to said wheel receiving section and apertured at theother end to receive the spindle section of said first bar.

5. An extension frame adapted to be attached rigidly to an implementframe, comprising a pair of members, each consisting of a curved barhaving generally parallel ends and a strut fixed to one end of each barand apertured at its other end to form an opening, the axis of whichcoincides with the axis of the other end of the bar, said other end ofthe strut of eachmember being pivotally connected with the other end ofthe 1 other member, an attaching block, adapted to be connectedto saidimplement frame, fixed to said one end of one of said bars, and a wheelreceiving section at the one end of the other bar.

6. In an agricultural implement, a frame including a substantially Z-shaped bar having genmember, a crank axle pivotally mounted on the endof said strut and said extension member, a

sector carried by and formed integrally with said strut,,a leverpivotally mounted on said sector,

and operative connections between said lever and said crank axle forswinging the latter.

9. An extension frame adapted to be attached rigidly to animplement'frame, comprising a bar having an attaching section, said barextending outwardly and downwardly therefrom and terminating in aspindle sectiongenerally parallel to said attaching section, and a strutfixed at one end'tosaid first section and at'the other end lying in linewith the axis of said spindle section.

10. An extension frame adapted to be attached rigidly to an implementframe, comprising a bar having anattaching section, said bar extendingoutwardly and downwardly therefrom and terminating in a spindle sectiongenerally parallel to said attaching section, a strut fixed at one end:

to said firstsection and at the other end lying in line with the axis ofsaid spindle section, an axle comprising a bar having a portion receivedin said other end of said strut and extending outwardly away from saidportion, said second bar terminating in a wheel receiving section, and astrut fixed at one end to said wheel receivlng section and apertured atthe other end to receive Y the spindle section of said first bar.

11. An extension frame adapted tobe attached rigidly to an implementframe, comprising a bar ally spaced-parts, and means pivotallyinterconnecting said last-mentioned parts with said'firstmentionedparts, respectively.

12. An agricultural implement comprising a frame including a generallytransversely disposed member, an extension member fixed at its inner endto said transverse member and extending generally downwardly andlaterally outwardly therefrom, a depending strut fixed to said extensionmember adjacent the end of the frame member, a crank axle pivotallymounted on the end of, said strut and said extension member, a

. erally parallel terminal sections and an; angular v t fsectionconnecting said terminal sections, a strut 1.='Aframe'constructionforagricultural i'rnplements and the'like,comprising'a mainframe in-f ed on saidrseetor'; operative,qpnnectionsgbe mi at he:- he e d; 1a czank axle havi a wheel-receivingsection at OIIQ QR LQm L JQliE of:

generally: MIM ET ndixiz 'diygrggnt parts q h @i'fll mganspivqtallgcpnnecting d? a tnme mneq ms m the, lower ends, csa ti lm. o;saiddownwardly; extending,

